﻿#region Copyright & licence

// This file is part of Refix.
// 
// Refix is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
// 
// Refix is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with Refix.  If not, see <http://www.gnu.org/licenses/>.
// 
// Copyright (C) 2010-11 David Musgrove and others.

#endregion

using System;
using System.Collections.Generic;

namespace Refix.Core.Structure
{
    public class ReferenceVersionComparer : IEqualityComparer<ReferenceVersion>
    {
        #region IEqualityComparer<ReferenceVersion> Members

        public bool Equals(ReferenceVersion x, ReferenceVersion y)
        {
            return x.Version == y.Version;
        }

        public int GetHashCode(ReferenceVersion obj)
        {
            return (obj.Version ?? string.Empty).GetHashCode();
        }

        #endregion
    }
}